Panasonic SHFX71 - WIRELESS SYSTEM Service Manual Download Page 26

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14.2. LED DRIVE CIRCUIT and LED CIRCUIT

LED DRIVE CIRCUIT

LED CIRCUIT

SCHEMATIC DIAGRAM - 2

SH-FX71GC/GN LED DRIVE / LED

CIRCUIT

TO
D-AMP CIRCUIT
(CN1003)
IN SCHEMATIC
DIAGRAM - 1

: +B SIGNAL LINE

H4003*

B1GDCFGG0026

Q4001

R4003

LED DRIVE

R4002

220

S1001

AUTO OPERATION

ON/OFF

H4000*

R4001

270

MA2J1110GL

D4000

LINK

5V_GND

B1GBCFGG0030

Q4000

LED DRIVE

POWER_SW

5V_GND

LINK

RED (AC)

MODE_SW

GREEN (LINK)

5V_GND

POWER_SW

LINK

D4001

B3AGA0000124

POWER LED

5V_GND

AC_IN

CN4000*

GREEN

RED

5V_GND

RED (AC_IN)

GREEN (LINK)

Summary of Contents for SHFX71 - WIRELESS SYSTEM

Page 1: ...5 4 Making the Wireless link 8 6 Service Mode 9 6 1 Service Mode Table 1 9 7 Disassembly and Assembly Instructions 10 7 1 Main Parts Location Diagram 11 7 2 Disassembly flow chart 12 7 3 Disassembly of Digital Receiver 13 8 Service Position 18 8 1 Checking Repairing LED Drive P C B and LED P C B 18 8 2 Checking Repairing D AMP P C B 18 9 Voltage Measurement Waveform Chart 19 9 1 D AMP P C B 19 9 2...

Page 2: ...MΩ When the exposed metal does not have a return path to the chas sis the reading must be 1 1 2 Leakage Current Hot Check 1 Plug the AC cord directly into the AC outlet Do not use an isolation transformer for this check 2 Connect a 1 5kΩ 10 watts resistor in parallel with a 0 15μF capacitors between each exposed metallic part on the set and a good earth ground such as a water pipe as shown in Figu...

Page 3: ...ed If this occurs follow the procedure outlines below 1 Turn off the power 2 Determine the cause of the problem and correct it 3 Turn on the power once again after one minute Note When the protection circuitry functions the unit will not operate unless the power is first turned off and then on again 1 4 Safety Part Information Safety Parts List There are special components used in this equipment w...

Page 4: ...e of the assembly 3 Use only a grounded tip soldering iron to solder or unsolder ES devices 4 Use only an anti static solder remover device Some solder removal devices not classified as anti static ESD protected can generate electrical charge sufficient to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove ...

Page 5: ...is used Definition The letter of PbF is printed on the PCB using the lead free solder To put lead free solder it should be well molten and mixed with the original lead free solder Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC Since the melting point of the lead free solder is higher than that of the normal lead solder it takes the longer time to melt the lead...

Page 6: ...ver Module Rx P C B Replacement 1 This Model uses Digital Transmitter Unit Digital Receiver Module Rx P C B for the wireless transmission of signals 2 After replacement of either Digital Transmitter Unit or Digital Receiver Module Rx P C B ID setting is required Refer to sec tion 6 1 Service Mode Table 1 for the procedures for ID setting 3 1 3 Wireless System Compatibility SH FX71 wireless system ...

Page 7: ...x 8 2 mm Wireless system 165 mm x 91 5 mm x 164 mm Mass Digital transmitter 0 0095 kg Wireless system 0 695 kg Wireless module Frequency range 2 4 GHz to 2 4835 GHz Number of channels 3 Operating temperature range 0 C to 40 C Operating humidity range 20 to 80 RH no condensation Power consumption in off mode approx 0 3 W Notes 1 Specifications are subject to change without notices Mass and dimensio...

Page 8: ...fore connection Do not connect the AC power supply cord until all other connections are complete 5 1 Digital Transmitter connection 5 2 Surround Speakers connection to the Digital Receiver 5 3 AC Power Supply Cord connection 5 4 Making the Wireless link ...

Page 9: ...t will be blinking 2 Press hold STOP on main unit followed by 2 on remote control Note System will go info pairing mode for 60 secs only after 60 secs FL display will return to its previous display STOP 2 3 During Pairing mode press ID Set button on the rear side of Digital Receiver Note Successful Pairing Digital Receiver indicator will turn red to green Main Unit will stop blinking 2 To cancel p...

Page 10: ... During disassembly and assembly please ensure proper service tools equipments or jigs is being used During replacement of component parts please refer to the section of Replacement Parts List as described in the service manual Select items from the following indexes when disassembly or replacement are required Disassembly of Top Cabinet Ass y Disassembly of LED Drive P C B and LED P C B Disassemb...

Page 11: ...11 7 1 Main Parts Location Diagram ...

Page 12: ...ly flow chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the ser vicing To assemble the unit reverse the steps shown in the chart below ...

Page 13: ... the unit and remove 4 screws Step 3 Lift up slightly theTop Cabinet Ass y Caution Do not apply strong force when lifting up the Top Cabinet Ass y to avoid damage of the wire wire connec tor at CN1003 Step 4 Detach 5P cable at connector CN1003 Step 5 Push back slightly before lifting the Top Cabinet Ass y entirely ...

Page 14: ...e the catch and remove the LED Drive P C B Caution 1 Do not apply strong force in releasing the catches to avoid damage of the catches Caution 2 Power Button will be released after removing LED Drive P C B Keep it in safe place install during asse bling Disassembly of LED P C B Step 4 Release the catches and remove the LED P C B Caution Do not apply strong force in releasing the catches to avoid d...

Page 15: ...or CN2 Step 2 Remove 3 screws Step 3 Slide SMPS Module P C B out from the clutch Caution During assembling ensure the SMPS Module P C B is seated properly 7 3 4 Disassembly of D AMP P C B Follow the Step 1 Step 5 of item 7 3 1 Step 1 Detach 7P cable at connector CN2 Step 2 Remove 3 screws Step 3 Remove D AMP P C B ...

Page 16: ...f item 7 3 1 Follow the Step 1 Step 3 of item 7 3 4 Step 1 Remove Heat Sink Clip Step 2 Flip over D Amp P C B Step 3 De solder pins of D Amp IC IC5200 Step 4 Remove IC5200 Caution Ensure the pins of D Amp IC are properly seated soldered on D Amp P C B during assembly ...

Page 17: ...17 7 3 6 Disassembly of Digital Receiver Module Rx P C B Follow the Step 1 Step 5 of item 7 3 1 Step 1 Pull both the P C B holders outwards Step 2 Lift up to remove the Digital Receiver Module Rx P C B ...

Page 18: ...rive P C B and LED P C B Step 1 Remove the Top Cabinet Step 2 Attach 5P cable from LED Driver P C B to the D AMP P C B CN1003 8 2 Checking Repairing D AMP P C B Step 1 Remove the Top Cabinet Step 2 Remove the D AMP P C B Step 3 Flip over D AMP P C B Step 4 Attach 5P cable from LED Driver P C B to the D AMP P C B CN1003 ...

Page 19: ...n and product itself 9 1 D AMP P C B 9 2 LED P C B 9 3 Waveform Chart REF NO MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CD PLAY 21 0 0 0 29 5 0 29 5 0 30 0 0 0 29 5 29 5 29 5 0 0 29 5 29 5 29 5 0 29 5 STANDBY 21 0 0 0 29 5 0 29 8 0 29 5 0 0 29 5 29 5 29 8 0 0 29 5 29 5 29 5 0 29 5 REF NO MODE 21 22 23 CD PLAY 0 0 5 0 STANDBY 0 0 0 REF NO MODE E C B E C B E C B E C B E C B CD PLAY 5 0 ...

Page 20: ...Illustration of IC s Transistors and Diodes MA2J1110GL A Ca Cathode Anode C1BA00000497 B3AGA0000124 Anode Anode Cathode A A Ca B1ABCF000176 B1ADCE000012 B1GBCFGG0030 B1GBCFJJ0051 B1GDCFGG0026 B E C 22 23 1 2 ...

Page 21: ...EMP SENSOR CURRENT PROTECTION VOLT PROTECTION RELEASE2 SWITCH2 MUTE DRIVER HIGH DRIVER LOW CONTROL HANDSHAKE 30V 5V 30V 30V 30V 30V 30V 30V 30V 30V I D SET S1000 SURROUND SELECTOR S1002 D4001 Q1007 Q1008 DC DETECT Q4001 LED DRIVE Q4000 LED DRIVE Q1006 SWITCH Q1004 Q1005 BIAS SWITCH 30V SMPS MODULE POWER SUPPLY TRANSMITTER UNIT AUDIO SYSTEM WIRELESS AUDIO TRANSCEIVER RF IF TRANSCEIVER 5 H1001 30V 5...

Page 22: ...22 ...

Page 23: ... SOLDER SIDE SOLDER SIDE A C B CN4000 H4003 H4000 CN1000 H1001 JK1000 CN1003 SURROUND SPEAKER 22 2 21 1 1 5 7 1 3 2 1 5 1 3 2 1 PbF PbF PbF TO SMPS MODULE P C B D AMP P C B LED P C B LED DRIVE P C B Note REF IS FOR INDICATION ONLY TO DIGITAL RECEIVER MODULE RX P C B ...

Page 24: ...facturer s specified parts shown in the parts list Capacitor values are in microfarad μF unless specified otherwise F Farad pF Pico Farad Resistance values are in ohm Ω unless specified other wise 1K 1 000Ω 1M 1 000KΩ Voltage and Signal lines Special Note This model uses Switching Mode Power Supply SMPS for providing necessary voltages There is no schematic drawings included in this document for t...

Page 25: ... R1033 10K R1030 18K R1031 0 C1000 C1003 0 1 7 8 5 6 9 14 16 15 11 12 10 13 22 19 20 17 18 21 2 1 4 3 CN1000 C5209 0 1 R5200 10 220P C5211 R5206 5 6K R5205 5 6K C5208 0 1 C5210 0 1 C5200 0 1 R3111 0 C5212 33P C5201 0 015 R5202 27K 330P C5224 C1004 35V470 C1002 0 1 C1008 0 1 HEATSINK1 R3112 0 R1000 150K 6 3V680 C1009 4 5 1 3 2 7 6 H1001 220P C5203 C5222 0 47 C5223 0 47 C5241 R5210 10 0 1 C5207 0 1 ...

Page 26: ... TO D AMP CIRCUIT CN1003 IN SCHEMATIC DIAGRAM 1 B SIGNAL LINE B SIGNAL LINE 1 3 2 H4003 B1GDCFGG0026 Q4001 R4003 LED DRIVE 0 R4002 220 S1001 AUTO OPERATION ON OFF 2 3 1 5 4 H4000 5V R4001 270 MA2J1110GL D4000 LINK 5V_GND B1GBCFGG0030 Q4000 LED DRIVE POWER_SW 5V_GND LINK 5V RED AC MODE_SW GREEN LINK 5V_GND POWER_SW 6 5 4 3 2 1 LINK D4001 B3AGA0000124 POWER LED 5V_GND AC_IN 1 3 2 CN4000 GREEN RED 5V...

Page 27: ...1006 IC5200 K1036 K1037 K1039 C1004 W1016 JK1000 CN1000 TO DIGITAL RECEIVER MODULE P2 L1000 C5201 C5202 C5203 C5204 C5205 C5207 C5208 C5209 C5210 C5211 C5212 C5213 C5214 C5215 C5216 C5218 C5219 C5220 C5221 C5222 C5223 C5224 C5231 C5232 C5233 C5234 C5241 C5242 R5200 R5201 R5204 R5205 R5206 R5207 R5208 R5210 R5211 R1007 C5200 C5206 C1018 C1015 R1012 R1005 R1006 R1015 Q1004 Q1005 Q1006 R1008 R1009 R1...

Page 28: ...28 ...

Page 29: ... C B LED P C B LED DRIVE P C B D AMP P C B Z1002 Z1001 Z1000 S1002 S1001 S1000 JK1000 H4003 H4000 H1001 CN4000 CN1003 CN1000 HEATSINK UNIT 18 16 16 16 16 13 11 10 9 8 7 7 7 7 7 7 7 6 5 5 4 4 4 4 4 4 3 2 1 1 1 1 1 1 1 1 1 a a b b c c 1 2 3 4 5 6 7 8 9 A B C D E F G H 10 11 12 13 NOTE PART IS NOT SUPPLIED REF IS FOR INDICATION ONLY SH FX71GC GN K CABINET DRAWINGS ...

Page 30: ...PAD ACCESSORIES BAG A7 A7 A7 A6 AC PLUG ADAPTER A5 A4 1 A4 A3 1 A3 A2 O I BOOK OIBOOK A1 A1 A1 TAG POLYFOAM TOP P4 POLYFOAM BOTTOM P4 P4 P3 P2 P1 FRONT 1 2 3 4 5 6 7 8 9 A B C D E F G H 10 11 12 13 NOTE PART IS NOT SUPPLIED SH FX71GC K PACKAGING DRAWINGS ...

Page 31: ... Packaging SH FX71GN CORRUGATED PAD A5 A4 1 A4 A3 1 A3 A2 O I A1 A7 POLYFOAM TOP P4 POLYFOAM BOTTOM P4 P4 P3 P2 P1 FRONT 1 2 3 4 5 6 7 8 9 A B C D E F G H 10 11 12 13 SH FX71GN K PACKAGING DRAWINGS NOTE PART IS NOT SUPPLIED ...

Page 32: ...32 ...

Page 33: ...REW 4 18 N0AE3GJ00001 SMPS MODULE P C B 1 PACKING MATERI ALS P1 RPKX1015 GIFT BOX 1 GC P1 RPKX1016 GIFT BOX 1 GN P2 RPFX1023 POLY BAG FOR TRANSMITTER UNIT 1 P3 RPFX0203 MIRAMAT BAG 1 P4 RPNX0574 J POLYFOAM 1 ACCESSORIES A1 K2CJ2DA00010 AC CORD 1 GN A1 K2CP2CA00001 AC CORD W TAG 1 GC A1 K2CQ2CA00007 AC CORD 2PIN 1 GC A1 K2CZ3YY00005 AC CORD 3PIN 1 GC A2 RQTX1132 G O I BOOK Sp Cn Ru Ur 1 GC A2 RQTX1...

Page 34: ...AGA0000124 DIODE 1 SWITCHES S1000 EVQPC105K SW ID SET 1 S1001 K0F122B00107 SW ON OFF 1 S1002 K0D123A00085 SW AUDIO CONTROL 1 CONNECTORS CN1000 K1MY22A00003 22P CONNECTOR 1 CN1003 K1KA05AA0193 5P CONNECTOR 1 COILS AND INDUC TORS L1000 G0A150L00003 CHOKE COIL 1 L1005 J0JCC0000101 INDUCTOR 1 L1006 J0JCC0000101 INDUCTOR 1 L1009 G0B340J00002 LINE FILTER 1 L1010 G0B340J00002 LINE FILTER 1 COMPONENT COMB...

Page 35: ...C1003 F1H1H104A013 0 1uF 50V 1 C1004 F2A1V4710036 470uF 35V 1 C1005 F1H1H104A013 0 1uF 50V 1 C1006 F2A1V4710036 470uF 35V 1 C1007 F1H1H104A013 0 1uF 50V 1 C1008 F1H1H104A013 0 1uF 50V 1 C1009 F2A0J681A550 680uF 6 3V 1 C1010 F1H1C105A097 1uF 16V 1 C1011 F1H1C105A097 1uF 16V 1 C1013 F2A0J101A245 100uF 6 3V 1 C1014 F1H1H104A013 0 1uF 50V 1 C1015 F1H1H104A013 0 1uF 50V 1 C1016 ECQV1H684JL3 0 68uF 50V ...

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